Aldo, the current UFC featherweight champion, stepped on the scale at 145 pounds, as did his opponent, Max Holloway, who holds the interim featherweight title. The two will meet to unify the belts in the UFC 212 headliner, the winner walks out of the Octagon as the sole UFC featherweight titleholder.

There are several other pivotal fights on the card. Claudia Gadelha and Karolina Kowalkiewicz meet in the co-main event in a bout that could determine Joanna Jedrzejczyk’s next challenger, while No. 3 ranked bantamweight Raphael Assuncao welcomes former WSOF champion Marlon Moraes to the Octagon. The Assuncao vs. Moraes winner would immediately jump into the title talk mix to challenge champion Cody Garbrandt.